Heating and ventilating buildings



(No Model.) 2 Sheets-Sheet. 1.

L. A. SPAULDING.

HEATING AND VBNTILATING BUILDINGS.

N0 251,309. Patented Dec. 20,1881.

ATTORNEYS.

(N0 MVOdEBl.) 2 Sheets-Sheet L. A. SPAULDING.

HEATING AND VENTILATING BUILDINGS.

No. 251,309. Patented Dec."20,1881.

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UNITED STATES PATENT OEEIcE.

LYMAN A. SPAULDING, OF PORT HURON, MICHIGAN.l

HEATING AND VENTILATING BUILDINGS.

SPECIFICATION forming part of Letters Patent No. 251,309, dated December 20, 1881.

Appncauon mea June 30,1351'. (No model.)

To all whom it may concern:

Be it known that I, LYMAN A. SPAULDING, of Port Huron, in the county of St.. Olair and State of Michigan, have invented a new and useful Improvement in Heating and Ventilating Buildings, of which the followingis a speciiication.

The object of my invention is to obtain thorough and uniform ventilation of large rooms-Stich as public halls, schoolrooms, churches, and railroad-cars-and as a consequence a uniform distribution of the heated air from the registers or other source of .supply. To that end 1 use floorregisters connecting by passages with a ventilating-shaft, such passages being so arranged that they are of uniform length between the shaft and registers wheresoever the registers be placed, so that instead ofthe exit of air being entirely at the registers nearest to the shaft there will be auniform action at every register.

The construction and opera-tion will be eX- plained in detail hereinafter with reference to the accompanying drawings, wherein- Figure l is a perspective view, showing the construction of a `floor in accordance with my invention. Fig. 2 is a plan view, showing the passages as arranged in relation to the ventilating-shaft; and Fig. 3 is a vertical section at the point ofthe connection between the main passage and shaft.

Similar letters indicate corresponding parts.

The ventilat-ing-shaft A, Figs. 2 and 3, will be placed at the end, side, or cornerof the room, as most, convenient; or in the case of a long and narrow hall, or in a railroad-car, it may be at the middle. Usually the shaft A will contain the smoke-fine, as shown at B, so as to utilize the heat in obtaining an artificial draft. 4

The hot-air inlets or registers shown at C may also be placed as most convenient, and the ventilation outlets or registers D will be fitted in the ioornext. to the side and end walls, equidistant from each other, or otherwise, as most convenient.

Beneath the floor are the passages afrom the registers D to shaft A, such passages being arranged so that the air passing otitis compelled to travel an equal distance, or nearly so, to the shaft. y

The construction of the door for obtaining the passages is shown in Figs. 1 and 3. b b are the joists or floor-beams, on which is laid a ioor, c. Upon this door c furring-strips d d are secured, and upon the strips d is the floor e, of matched boards. There is thus a space obtained between the oors c e, which space is divided by the furring-strips to form the ventilating-passages et. For the registers at the end of the room, or most distant from the shaft A, the furring-strips are laid to form straight passages that run together near the shaft, as shown in Fig. 2. For the side registers the strips d are laid to form V-shape passages, each of equal length. A simplemethod is, as shown, to utilize the passage from the cornerregisters as a main for all the side inclined passages.

When the ventilating-shaft A is at the center the arrangement will be similar at each end of the room. In the case of a church,where the registers are in the aisles, the strips will be arranged accordingly, and other modifications to conform to the shape of the room and location ofthe shaft will be readily understood.

At the opening into the shaft A is a hinged flap or valve, f, fitted for being raised to close the opening more or less, and thus wholly or partially arrest theA exit of air at all the registers at once. This method of controllingthe exit of air insures uniform ventilation and heating. The cold air lying next to the licor will pass by the registers to the Ventilatingpassages, and they being of equal length, the amount of air escaping will be equal at every register. The heated air will consequently be drawn down uniformly in every part of the room. The natural tendency of the air to escape by the registers nearest tothe shaft and by the shortest passages is thus overcome, and the work of the Ventilating-shaft is distributed equally.

Having thus fully described my invention, Iclaim as new and desire to secure by Letters Patent- In a system of Ventilating rooms, the combination and arrangement ofthe shaft A, hotair inlets C, floor-outlets D, and passages a,

of uniform length between the several outlets and the shaft, substantially as described.

LYMAN A. SPAULDING.

Witnesses:

ALEX. McDoNALD, J. F. MOSWEEN.

IOO 

